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My Computer does not show CD or DVD drive in Windows XP

October 14th, 2010. Published under Uncategorized. No Comments.

I have seen this a few times in recent months, so it is worth documenting. The CD or DVD drive does not show up in My Computer, and in the Device Manager it is showing a warning (yellow circle with black exclamation point in it). The description of the warning states something about the drivers being installed but the device is not present, when the device is most certainly present.

The fix is a registry hack. Be sure to export this key before making deletions, in case things go awry. The key to navigate to is:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

Delete the following values in the right pane.  Note that both values may not exist.

  • UpperFilters
  • LowerFilters

Restart the computer and your drive letter should return.

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